Hello, I am trying to design a tube-in-tube heat exchanger that is capable of cooling a 200 bar supercritical steam line from 500 deg C to 40 C, using building utility water as the cooling fluid in the outer tube. I would like to design the exchanger so that the cooling fluid outlet temperature...
I'm looking for piping connectors (flange or clamp style) rated for operation at 240 bar and 650C, ideally in inconel 625. I've come across some solutions from Fruedenberg (Techlok and SPO flanges) that seem like they should work however the listed temperature ratings top out at 400 C or so...